3.5    GENERAL OPERATIONS 
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3.5.2    Use EBLs (Electronic Bearing Lines) [EBL1/2] 
 
EBLs (Electronic Bearing Lines) are indispensable to the measurement of bearings. 
Operators must be familiar with the operation of EBLs beforehand. 
 
 
EBL1 Operation 
 
If EBL2 is selected or EBL1 is not displayed, press [EBL1] key to select EBL1 before starting operation. 
(The currently selected EBL is shown in reverse video at the lower right of the radar display.) 
 
 
  Procedure    1  Press [EBL1] key. 
 
EBL1 at the lower right of the radar display will be shown in reverse video, and EBL1 
becomes operable. 
 
2  Press [EBL1] key again. 
 
The EBL1 display will disappear. 
 
*  Software  button  յ  located  at  the  top  right  corner of  the  radar  display described in  Section 2.3.3  is  also 
available to switch EBL1 between ON and OFF. 
 
 
EBL2 Operation 
 
If EBL1 is selected or EBL2 is not displayed, press [EBL2] key to select EBL2 before starting operation. 
(The currently selected EBL is shown in reverse video at the lower right of the radar display.) 
 
 
  Procedure    1  Press [EBL2] key. 
 
EBL2 at the lower right of the radar display will be shown in reverse video, and EBL2 
becomes operable. 
 
2  Press [EBL2] key again. 
 
The EBL2 display will disappear. 
 
*  Software  button  շ  located  at  the  top  right  corner of  the  radar  display described in  Section 2.3.3  is  also 
available to switch EBL2 between ON and OFF. 
 
 
 
Operation  procedures  are  described on the following pages. For how  to  measure  distance  and  bearing,  see 
Section 4.